Home / 263,318.20-394,321.20-210,830.20

Finding the Fourth Proportional to 263,318.20, 394,321.20 and 210,830.20

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Solution

The fourth proportional to 263,318.20, 394,321.20 and 210,830.20 is: 315,719.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,318.20 : 394,321.20 = 210,830.20 : x
  2. Step 2: Convert to fraction form
    263,318.20/394,321.20 = 210,830.20/x
  3. Step 3: Cross multiply
    263,318.20x = 394,321.20 × 210,830.20
  4. Step 4: Simplify right side
    263,318.20x = 83,134,817,460.24
  5. Step 5: Solve for x
    x = 83,134,817,460.24/263,318.20
  6. Step 6: Final answer
    x = 315,719.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.